31230100231 has 8 divisors (see below), whose sum is σ = 34989989904. Its totient is φ = 27623675520.

The previous prime is 31230100219. The next prime is 31230100249. The reversal of 31230100231 is 13200103213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31230100231 is a prime.

It is a super-2 number, since 2×31230100231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31230100211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38365810 + ... + 38366623.

It is an arithmetic number, because the mean of its divisors is an integer number (4373748738).

Almost surely, 2^31230100231 is an apocalyptic number.

31230100231 is a deficient number, since it is larger than the sum of its proper divisors (3759889673).

31230100231 is a wasteful number, since it uses less digits than its factorization.

31230100231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76732481.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31230100231 its reverse (13200103213), we get a palindrome (44430203444).

The spelling of 31230100231 in words is "thirty-one billion, two hundred thirty million, one hundred thousand, two hundred thirty-one".